# A2A, MCP & HTTP 402 Endpoint SLA Compliance Auditor

> A2A, MCP & HTTP 402 Endpoint SLA Compliance Auditor is a paid API for AI agents from mcp-compiler.agentdiet.dev, paid per call via MPP, $0.01/call, status unknown (last checked 2026-10-21).

Audits a remote A2A, MCP, or x402 service URL for JSON-RPC compliance, latency SLA, OpenAPI schema validity, and HTTP 402 payment settlement headers

## Facts

- Endpoint: GET https://mcp-compiler.agentdiet.dev/v1/mcp-security-scan?utm_source=zero.xyz
- Price: $0.01/call
- Payment: MPP
- Status: unknown
- Last checked: 2026-10-21
- Activations on Zero: 0
- Provider: mcp-compiler.agentdiet.dev
- Website: https://mcp-compiler.agentdiet.dev
- Canonical page: https://www.zero.xyz/c/mcp-compiler-agentdiet-dev-a2a-mcp-http-402-endpoint-sla-compliance-0fe9f644
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_oDdJMik0H0jR8I0UuRoCZ

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability mcp-compiler-agentdiet-dev-a2a-mcp-http-402-endpoint-sla-compliance-0fe9f644
```

Example prompt: Run a compliance audit on https://my-agent.example.com/mcp — I want to know if it's JSON-RPC compliant, whether the latency SLA is acceptable, and if the HTTP 402 payment headers are correctly set.

## When to prefer this

Use this endpoint when you need to verify that a specific A2A agent, MCP server, or x402-enabled service URL is protocol-compliant before integrating it into an agent pipeline or swarm. It is the right choice when you need a combined check across JSON-RPC correctness, latency SLA, OpenAPI schema, and HTTP 402 payment header conformance in a single call, rather than running separate protocol validators.

## Known failure modes

- Target URL is unreachable or times out — audit fails with connection error
- Target URL is not a valid A2A/MCP/x402 endpoint — returns non-compliance report or parse error
- Malformed or missing URL parameter — returns validation error
- Target endpoint returns unexpected response format — partial audit with warnings
- Rate limiting or upstream errors from the audited service — incomplete results

## How this service works

Audits any remote agent or MCP URL for JSON-RPC compliance, latency SLA, OpenAPI schema, and HTTP 402 settlement headers. (Live x402 v2, IETF MPP & MCP endpoint at https://mcp-compiler.agentdiet.dev/v1/mcp-security-scan)

## Output

Returns a structured audit report including JSON-RPC compliance status, measured latency against SLA thresholds, OpenAPI schema validation findings, and HTTP 402 / x402 payment header inspection results for the target URL.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "url"
 ],
 "properties": {
  "url": {
   "type": "string",
   "minLength": 1,
   "description": "Target A2A, MCP, or x402 service URL to audit for protocol compliance"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "object"
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/mcp-compiler-agentdiet-dev-a2a-mcp-http-402-endpoint-sla-compliance-0fe9f644/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from mcp-compiler.agentdiet.dev](https://www.zero.xyz/host/mcp-compiler.agentdiet.dev/llms.txt)